Smoke-conducting pipe.



L. W. PIETSGH.

SMOKE CONDUCTING PIPE.

APPLICATION FILED 111111116, 1913. 1,131,159. Patented Mar. 9, 1915.

2 SHEETS-SHEET 1.

w iimco-eao L. W. PIETSOH.

SMOKE CONDUCTING PIPE.

APPLICATION FILED JUNE 16, 1913. 1,1 31,159.

Patented Mar. 9, 1915 2 SHEETSSHEET 2.

NORRIS PETERS co., PHGTOVLITHGH WASHINGTON. D. Cv

LOUIS w. nurses, or POST FALLS, IDAHO.

SMOKE-CONDUCTING PIPE.

Specification Letters Patent.

Patented Mar. 9, 1915.

Application filed June 16, 1813. Serial No. 773,954.

1/ '0 all whom it may concern:

Be it known that I, LOUIS \V..P1F.TsoH, a citizen of the United States, residing at Post Falls, in the county of Kootenai and State of Idaho, have invented new and useful Improvements in Smoke-Conducting lipes, of which the following is a specification.

This invention relates to improvements in soot and other residue elemination devices for the smoke conducting pipes of furnaces leading from the latter to the stack and the invention is especially adapted for commercial furnaces where extraneous matter carried by the smoke is particularly trouble some.

The present invention is an improvement on the invention disclosed in my pending application filed the 25th day of llflarch, 1913, but one of the objects of this invention is to reduce the smoke to a colorless vapor without otlering any appreciable resistance to the draft thereby enabling the device of the invention to be effectively used with a natural draft and avoiding the necessity of a forced or induced draft appliance.

A further object is to provide drainage whereby the matter separated from the vapor may be continuous y drawn off, this feature also including piping so arranged that interior portions can be cleaned and drained oil through the main drainage pi ing.

Other features of novelty wi be more fully described in connection with the accompanying drawings and will be more particu nrly pointed out in and by the appended claims.

In the drawings: Figure 1 is a view in side elevation of one form of my invention with parts broken away. Fig. 2 is a sectional view on line 2-2 of Fig. 1. Fig. 3 is a perspective view of the structure shown in Fig. 2. Fig. 4 is a detail view. Fig. 5 1s a sectional view on line 5-5 of Fig. 3.

Like characters of reference designate like arts throughout the different figures of the rawings.

As shown, the device of m invention ineludes a smoke receiver 1, a apted for connection with the furnace, and a receiver 2, ada ted to deliver to a stack, not shown, the sai receivers being connected by pipin for conveying the smoke in its passage rom receiver to 2. The receiver may be providcd with baflles 8 dis osed in a manner to cause the smoke to ta re a tortuous course through receiver 1 so as to arrest passage of the coarser particles by reason of their engagement with said bailles.

Leading from the receiver 1 is a plurality of pipe sections 4, 5 and 6 which may take the form of elbows and which are shown as being downwardly directed. These elbow sections are each provided with dampers indicated at 7, 8 and 9 so that any one of the same may be cut out of service for cleaning or repair purposes without affecting the others. The sections 4, 5 and 6 deliver to pipe sections 10, 11 and 12 which are shown vertically disposed to convey the smoke downwardly and which are provided in superposed airs for each piping. The lowermost of tie sections 10, 11 and 12 deliver to trap sections 13, 14 and 15 and the latter discharge into the stack receiver 2.

A supply (pipe 16 is rovided with branch p1pes 17 an 18 and tie former has nozzle pipes 19 and 20 connected with sections 10 and 10 of one piping, respectively, while the latter has nozzle pipes 21, 22 and 23 24, of the sections 11, 11 and 12, 12 o the remaining piping, as will be clearly seen in and by reference to Fig. 1. A drain pipe 25, whici may be connected with a sewer or other outlet, is provided with branches 26 and 27 leading upwardly, as shown. Branch 26, is provided with rainage connections 28 and 29, leading to sections 10 and 10, and said pipe or branch 26 is also provided with connections 30 and 81, leading to sections 11 and 11, respectively. Branch 27 is provided with connections 32 and 38, leading to sections 12 and 12, respectively. A trap drainage branch 34 extends upwardly from pipe 25 and has valved connections 35, 36 an 37 leading to the flushing trap portions 38, 39 and 40, of sections 13, 14 and 15, respectively. It will thus be seen that independent flushing or cleaning of any of the pipe sections can be carried out while the remaining sections are in service by suitable operation of the valved connections just described. Further, the bent or trapped portions 38, 39 and 40 serve to prevent the flushing water from passing into the receiver 2.

The sections 10 to 12 are of identical construction and therefore only one need be described in detail and reference will now be made to Figs. 2 and 8. These sections are made of vitrified or other non-corrosive material and section 10 consists of a pipe casing 41, having suitably flanged ends 42 and 43, as shown, for connection with the ends of adjacent sections. Said casing also has a seat -l-l adapted to receive the lunged head 45, of a removable nozzle smoke conducting separating pipe 46 which extends downwardly in the casin 41 and which is reduced in diameter witi res )ect thereto. A collecting cup 47 is dispose in said casing 41 and is arranged with its open end facing in the direction in which the smoke approaches and said open end is disposed in overlapping relation with the lower end of )ipe so so as to cause the smoke to reverse its path of travel through the casing in its passage from the pipe 40, through the cup 47, into the casing i1.

The cup 47 is removably mounted in the casing 41 and I have shown the cup rovided with lugs -18 adapted to seat on age 49, projecting inwardly from the casing 41. The lower end or the bottom of the cup is provided with an outlet pipe 50 communicating with the drainage connection 28. The nozzle pipe 19 extends through the easing 41 and into the pipe 46 and is provided with a nozzle 51, adapted to discharge steam or water into pipe 46 to separate soot and other particles 0 matter from the products of combustion and render the same a colorless vapor as nearly as possible. The particles of matter dampened by the steam or water will be weighted, as it were, and they will descend into the collecting cup while the vapor will take the course indicated in the arrows in Fig. 2. There will be suihcient liquid, even with the condensation of steam, to carry the separated articles deposited in the cup out througi the drainage connections hereinbefore described. Thus it will be seen that I not only do not cause any material resistance to the travel of the smoke, but by reason of the fact that I reduce its volume by so aration therefrom of soot particles there wil be a freer passage of the vapor after itleaves the cup because of the reduced volume and wei ht and therefore any slight resistance to raft will thus be overcome and the device can be operated under a natural draft.

In order to facilitate the cleaning of the outer wall of the cup and the inner wall of the casing so as to prevent restriction of passage at 52, due to collection of matter after long usage, I provide an openin 53, in the casing 41, and on the margins 0 said opening are hook-like lugs 54 adapted to be engaged by projections 55, on a closure 56. The latter may be provided with a projecting handle to permit of the closure being turned to lock or unlock the projections 55 with the ln s 54.

If it is esircd to wash out or clean one pipe line, its damper 7, for instance, will be turned to cut sue pipe out of service and the closures: will be removed to give access to the cleanout openings 53 into which a hose may be inserted to flush or clean out the interior of the pipe line. The valved connection 35 will be opened to drain oil the water through pipe 34. The interior portions of the cups can be cleaned by flushing the same from the nozzles and draining off through the pipe 26.

I preferably use steam where sulfur is present in the products of combustion and where it is desired to produce sulfuric acid.

\Vhile I have herein shown and described one embodiment of my invention I do not wish to be limited thereto except for such limitations as the claims may import.

I claim 1. In a spark arrester, a smoke conducting pipe having an upright pipe section interposed therein provided with cup supporting ugs projecting interiorly thereof, a collecting cup of reduced cross section with respect to the interior cross section of said pipe section and provided with lugs adapted to seat on the lugs of said pipe section to removably support the cup in spaced relation in and with respect to the interior of said pipe section, a separating pipe having a flange engaging said pipe section to removaby support said se arating pipe in said pipe section and sai separating pipe bein of suilicient length to project downwar ly into said cup,vsubstantially as described.

2. In a spark arrester, a smoke conducting pipe having an 11 right l')6 section interposed therein an provi e with cup supporting lugs pro'ecting interiorly thereof, a collecting cup 0 reduced cross section with res ect to the interior of said )ipe section an provided with lugs adapted the lugs of said pipe section to removably support the cup in spaced relation in and wit respect to the interior of said pipe section, a separating pipe having a flange engaging said pipe section to partially close the same and to removably support said separating pipe in said pi )0 section, said separating pipe being of sul icient length to project downwardly into said cup, said cup 1 raving a drainage pipe, and a drainage connection extending through said pipe section and connected with the drainage pipe of said cup, substantially as described.

3. In a spark arrester, a conducting pipe having an upright pipe section interposed therein and including cup supporting means. a collecting cup removably supported in said pipe section on said means, the upper end of said section having an inner flange closure seat portion and outer annular pipe seat portion one being above the other, a separating pi 0 having a closure flange seated on Sfll( inner annular portion and said pipe being of sufiicient length to depend 1 to seat on i downwardly into said cup, said cup having a drainage pipe, and a drainage connection extending through said upright pipe section and coupled to said cup drainage pipe, substantially as described.

l. In a spark arrester, a smoke conducting pipe having an upright pipe section interposed therein for a downward passage of smoke thereto, a separating pipe of reduced cross section with respect to the cross section of said pipe section and extending downwardly therein, a collecting cup disposed in said pipe section and having its upper open end disposed in surrounding relation and above the lower end of said separating pipe right angles to the longitudinal axis thereof, 7

and a drainage pipe leading from said cup, substantially as described.

In witness whereof I hereunto affix my signature in the presence of two witnesses. LOUIS W. PIETSCH. Witnesses:

HAROLD SGA TLEB RY, EDNA BROYLES.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0." 

